Double Clamp Earth Resistance Tester applied with precise 4-pole, 3-pole and simple 2-pole method, selection method, double clamp method for grounding resistance measurement, The measurement of earth resistance, soil resistivity, earth voltage, AC voltage, grounding lead leakage current, AC current, DC resistance. 1. Model No.: ETCR3200 2. Erth resistance,Range：0.00Ω～30.00kΩ 3. Soil resistivity Range：0.00Ωm～9000kΩm 4. Test Frequency: 128Hz/111Hz/105Hz/94Hz(AFC) 5. Short-circuit Current:AC 20mA max 6. Power Supply:DC 9V (Alkaline dry battery LR14-1.5V )

With 4-wire method,3-wire method and simple 2-wire method, selection method, double clamp methodto measureearth resistance,DC currentsoil resistivity,earth voltage, AC voltage,grounding lead leakage current. 1. Model No.: ETCR3200C 2. 2/3/4-wire method measure earth resistance,Range: 0.00Ω ~ 30.00kΩ 3. Selection method meausre earth resistance, Range: 0.00Ω ~ 3000Ω 4. Doule clamp method measure earth resistance,Range: 0.00Ω~100Ω 5. Soil resistivity measurement, Range: 0.00Ωm ~ 9000kΩm 6. Earth voltage measurement,Range: AC 0.0 ~ 100.0V